Finite-difference algorithm with local timespace grid refinement for simulation of waves


статья в журнале
Авторы: Lisitsa V.   (ИНГГ СО РАН)   Reshetova G.     Tcheverda V.   (ИНГГ СО РАН)  
дата публикации: 2012
реферат:
This paper presents a new approach to a local time-space grid refinement for a staggered-grid finite-difference simulation of waves. The approach is based on approximation of a wave equation at the interface where two grids are coupled. As no interpolation or projection techniques are used, the finite-difference scheme preserves second order of convergence. We have proved that this approach is low-reflecting, the artificial reflections are about 10???4 of an incident wave. We have also shown that if a successive refinement is applied, i.e. temporal and spatial steps are refined at different interfaces, this approach is stable
первоисточник: Computational Geosciences
том: 1
страницы: 39-54
ISBN:
ISSN:
внешние ссылки:
WoS   WoS (цитирование)
DOI  
РИНЦ SPIN  
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полный текст статьи

comg-2012-16-1-39